Hi Evgeni, There will be several thousands notifications/day if I have it send notification only when certain patterns are visited, in about 100+ caches, which brings up another question: wouldn't having 100+ CQs be creating too much overhead?
thanks. On Tue, Feb 18, 2020 at 2:17 PM Evgenii Zhuravlev <e.zhuravlev...@gmail.com> wrote: > Hi, > > How many notifications do you want to get? If it's just a several > notifications, then you can even register separate CQ for each of the entry > with its own remote filters. At the same time, if you have a requirement to > send these notifications for a lot of entries, then this approach will > create a big overhead. > > Its possible to unregister a CQ after you get first notification - you > just need to return FALSE from a remote filter. Also, you can send not > exact entry, but only some fields using Transformer: > https://www.gridgain.com/docs/latest/developers-guide/key-value-api/continuous-queries#remote-transformer. > You can create some another object, which will contain only part of the > fields. > > Best Regards, > Evgeni > > > пн, 17 февр. 2020 г. в 03:58, narges saleh <snarges...@gmail.com>: > >> Hi All, >> I am getting the following streams of the following records: >> name, org, year, month, day >> 1- john, acc, 2004, 2, 1 >> 2- pete, rd, 2004, 3,1 >> 3- jim,hr,2004, 5,2 >> 4- jerry,math,2005,2,1 >> 5- betty,park,2005,3,2 >> 6- carry,acc,2006,1,1 >> >> I want to get notification for the first occurrence of a particular >> value. So, I want to get notifications when I get records 1, 4 and 6, and >> in this case, I want to get the fields, org, and year back only. >> >> Questions: >> 1) Is CQ overkill in this case? If yes, what's a better alternative? >> 2) If not, how can I set up CQ to get only one record per occurrence? >> 3) How would I return only org and year back with the CQ transformer, >> considering that I am working with a flat object? Note that in reality this >> record has 25-30 fields (I am showing only 5 of them). >> >> thanks. >> >
